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TEMPCOMPRTC-RD
A PPENDIX B—TC-RTC: I MPLEMENTATION D ETAILS
UART Communication Parameters
Baud rate: 9600 bps
Data format: 8 data bits, 1 stop bit, no parity
Flow control: None
RTC and NVRAM Registers—Data Format
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
Address
Range
00H
01H
CH
0
Seconds
Minutes
00-59
00-59
02H
0
12 /
24
A/P
Hours
01-12
01-23
03H
0
0
0
0
0
Day of Week
1-7
04H
0
0
Date
01-31
05H
0
0
0
Month
01-12
06H
07H
Year
Control (Reserved)
00-99
08H
NVRAM
56 x 8
3FH
(Stored in non-volatile Flash Memory)
Figure 10. RTC and NVRAM Registers—Data Format
Notes:
1. The contents of the time and calendar registers are in binary coded decimal (BCD) format.
2. The Clock Halt (CH) bit, when set to zero, will disable the RTC.
3. The 12/24 bit selects 12-hour mode if set to one.
4. In 12-hour mode, the AM/PM bit selects “PM” if set to one. In 24-hour mode, this bit is the second 10-hour bit (20-23
hours).
12
Rev. 0.1
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